<form method="post">
    <table>
        <tr>
            <td class="label">原密码：</td>
            <td><input name="old_password" type="password" required></td>
        </tr>
        <tr>
            <td class="label">新密码：</td>
            <td><input name="new_password" type="password" required></td>
        </tr>
        <tr>
            <td class="label">确　认：</td>
            <td><input name="re_new_password" type="password" required></td>
        </tr>
    </table>
    <div>
        <input type="submit" class="btn" value="确认修改">
    </div>
</form>